And condensing jars of metal



(No Model.) 3 Sheets-Sheet 1.

B. V. DABLEN, Deod. 0. KNIGHT, Sub-administrator. MACHINE FOR ROLLING AND GONDENSING BARS 0F METAL.

/ @ZZMW 516% weizew Tm: NORRIS PETERS co. PnoTmumo. WASH (No Model.) 8-Sheets Sheet 2.

B. V. DAELEN, Deod.

0. KNIGHT, Sub-administrator. MACHINE FOR ROLLING AND OONDENSING BARS 0P METAL.

Patented June 13, 1893.

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O. KNIGHT, Sub-administrator. MACHINE FOR ROLLING AND OONDENSING BARS 0F METAL.

No. 499,677. Patented June 13, 1893.

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UNITED STATES OCTAVIUS KNIGHT, OF NASHINGTON,

DISTRICT OF COLUMBIA, SUB-ADMIN- ISTRATOR OF THE ESTATE OF BERNARD VITAL DAELEN, DECEASED.

MACHINE FOR ROLLING AND CONDENSING BARS OF METAL.

SPECIFICATION forming part of Letters Patent No. 499,677, dated June 13, 1893.

Application filed June 17, 1892. Serial No. 437,074. (No model.) Patented in Belgium January 15, 1891, No. 93,291: in Italy February 2,1891,LVI,467; in Germany July 20, 1891, No. 57,656; in England September 8,1891, No. 14,268; in Sweden September 17, 1891, No. 3,245 in Austria-Hungary September 20, 1891, No. 26,685 and N0. 49,026j in Norway September Z3,1891,N0. 2,274; in Switzerland October 15, 1891, No. 3,487, and in Spain October 18, 1891, ITO-12,529.

To aZZ whom it may concern.-

Be it known that BERNARD VITAL DAELEN, deceased, late a subject of the King of Prussia, who resided at Berlin, Kingdom of Prussia, Germany, did invent new and useful Improvements in Machines for Rolling and Condensing Bars of Metal, (which have been patented in Germany, No. 57,656, dated July 20, 1891; in England, No. 14,268, dated September 8, 1891; in Belgium, No. 93,291, dated January 15, 1891; in Austria-Hungary, No. 26,685 and No. 49,026, dated September 20, 1891; in Spain, N0.12,529,dated October 16,1891; in Switzerland, No. 3,487, dated October 15, 1891; in Norway, No. 2,274, dated September 23,1891, in Sweden, No. 3,245, dated September 17, 1891, and in Italy, Vol. LVI, No. 467, dated February 2, 1891,) whereof the following is a specification.

This invention relates to a machine for rolling and condensing bars of metal having round,-polygonal or other similar sectional forms and being lengthwise of uniform or varying thickness, the said machine consisting mainlyin a pair of rolls the operative surfaces whereof, being peripherally of the same length as the bar to be rolled, occupy but a part of the circumference of the rolls, while the remaining parts of the rolls are of smaller radius than the latter, so that bet-ween the two ends of the operative surfaces a break or gap is formed, which permits the bars to be drawn back after each pass to their starting point without stoppage of the rolls.

The improvements consistin means forcausing the bars to be drawn back and to be rotated by a part of a revolution after every pass, for adjusting the rolls closer together after every operation on the bar, and for allowing the bar to expand freely in one direction without prejudice to its being securely guided.

The bar to be rolled and condensed is supported at its ends by means of two spindles carried by two cross-hea ds. These crossheads are connected together to form a frame and they move lengthwise to the said bar between guides.

One of the spindles works with screw-threads in a tube which is longitudinally movable in the cross-head carrying the spindle, and the tube is acted upon bya spring or other equivalent pressing-device, (such as a weight, or apiston movable in a cylinder supplied with a fluid under pressure) whereby the spindle is pressed against the bar, so that the latter is kept securely supported between the two spindles, while besides this the said spring or pressing device allows the spindie to recede when the bar becomes longer by the rolling-operation. The other spindle is provided with a mechanism for rotating it by a certain angle at the time the cross-heads and the parts carried thereby are drawn back. This mechanism consists first, in a boss having studs on its periphery and rotatively connected to the corresponding cross-head, while it is provided with a central bore through which the spindle is passed and wherein it is locked by any suitable means, and secondly, in a hollow cylinder mounted on the frame of the machine and having inside one or more oblique ribs that engage in the spaces between the said studs, the ribs having such incline and length, that, every time the cross-heads are drawn back, the ribs will cause the boss, the bar and the spindle to turn by the desired angle. In order, however, to prevent the spindle and the barfrom being rotated backward again during'their forward longitudinal motion, the hollow cyl- 8o inder is mounted rotatively in the machine frame, and it is kept in its normal position by a stop and a spring. The studs of the boss will thus, when the latter moves forward, only operate to turn the cylinder, which is there- 8: upon thrown back to its normal position by i the said spring. At the next retrograde motion of the cross-heads the oblique ribs come into engagement with the following studs, the spindle and the bar being thereby rotated 9c. another step. The frame comprising the two cross-heads is moved backward by means of a lever connected to one of the latter and 0perated by an arm, which is fixed to the shaft of one of the rolls. After every pass of the 5 bar the bearings of the rolls are adjusted closer together by wedges in combination with screws and a ratchet-mechanism, actuated by a tappet on one of the said shafts.

A rolling machine comprising these improvements is represented in the annexed drawings.

Figure 1 is an end view of the same; Fig. 2 a sectional side elevation taken on line 1-1 Fig. 1. Figs. 3 andyt show in sectional elevation and in sectional plan the lower guides for the cross-heads and parts connected therewith, drawn to a larger scale. Figs. 5 to 9 show certain parts in detail drawn to a still larger scale. Figs. 10 and 11 represent in elevation and sectional plan a modification of the pressing device.

F and F are the two rolls, half the peripheries whereof, being in Fig. 2 on the right hand side, form the operative portionsj,j, while the opposite halves of the peripheries of the rolls, made with a smaller radius, constitute the gaps through which the bars to be rolled are drawn backward. The said rolls are integral with the respective shafts E, E journaled in the bearings D, D, which are mountedin the standards A, B so as to be vertically adjustable therein. The shafts E, E are connected together by means of the spur-wheels P. Q, and the lower shaft E, is driven by the spur-wheels N, N, shafts M and pulley L.

To the standards A B, are secured at U and gether by rods (1 so as to constitute a frame. In the cross-head c is mounted the spindle Figs. 3, 4, and in the cross-head c, the spindle It in line with the former, each spindle having at its inner end a recess, into which recesses are inserted the ends of the work-piece or bar S, formed to correspond thereto. The spindle is is screwed into a tube a capable of sliding in the middle part of the cross-head c forming a sleeve, and both, the tube and the spindle, are pressed toward the bar S by a spring Z, bearing at its outer end against a plate m, which is connected to the cross-head c by rods (1. This spring serves on one hand to keep the bar S securely supported between the two spindles 70, 70' while on the other hand it allows the spindle 70 to be pushed outward in the measure as the bar is stretched by the rolling process. Moreover, the spindle may be adjusted to the length of the bar S by being screwed farther into or out of the tube 1 The other spindle 7c, is passed through the middle tubular portion of the cross-head c, and it is detachably secured in the boss 6, which is mounted rotatively on the end of the said tubular portion of the cross-head in the manner represented in section by Figs. 4 and 8. The means shown in the drawings for securing or looking the spindle 7c in the boss e consist in a stud 0, Fig. 4 screwed into the spindle, and in a kind of bayonet groove 0, Fig. 8, cut into the boss 6 and having such form that after the spindle has been introduced into the cross-head, and the stud 0 has slipped into the groove 0, the spindle may be turned by a quarter of a circle and then drawn backward again so that the stud 0 passes into the receding portion of the groove, the spring Z thereupon keeping the stud 0 engaged in the said receding portion (provided the bar S be in its place), and further rotation of the spindle relatively to the boss e being prevented, whereas the spindle is free to rotate together with the boss. The said boss has on its periphery studsf, Figs. 3 to 6 and 8, 9 whereof two at a time engage in the slots a of the guides 'a 0. during the greater part of the rolling operation (see Fig. 9 which isa transverse section through the guides a, a with the boss 6 in position between the same) the rotation of the boss 6 being then prevented. But, when the boss 6, is near the end of its backward course, it passes into the hollow cylinder g, mounted rotatively in the bearing h, integral with the guide a, a the said cylinder being provided on its inner surface with the oblique or helical ribs g, g Figs. 3, 4, 5, 7. This cylinder is normally kept in a determinate position by means of two pins w, 1 and a spring 8 (see especially Fig. 5.) the said pins being fixed respectively to the cylinder and its bearing It, so that the pin y forms a stop for the pin 00, while the spring 5, attached with its ends to a standard 15 and to the said pin 00, draws the latter against the pin y and thus tends to maintain the cylinder in its normal position, whereas it allows the same to rotate by a certain amount in the direction of arrow 2 Figs. 1 and 5. Now, if the boss c, has passed into the cylinder g, as indicated by dotted lines in Fig. 7, the studs f, having been engaged in the slots a, strike against the helical ribs 9', q one of these studs being then in the position marked 3 in Fig. 7. As the boss 6 recedes farther, this stud will slide upward on rib g, the cylinder being prevented from yielding to the pressure of the stud by the pins :0, 1 and when the boss is at the end of its course, the said stud will be in the position marked 4:. By these means the boss 6 is rotated through a certain angle together with the spindle 7c, and this rotation is transmitted to the bar S by the end of the bar and the recess in the end of the spindle being made square. When the aforesaid studf has attained the position .4, the stud next below it will be in the position 5, which through a suitable arrangement of the rib g, is such that the latter stud is then in a line with the guiding-slot a When thereupon the frame carrying the bar S and the boss 6 moves forward again, the stud being in position 5, presses from below against the rib g, and as the spring sallows the cylinder gto yield to such pressure, the stud moves forwardin astraight line and passes, in its turn, into the guidingslot to. As soon as the stud leaves the rib g, the spring .9 returns the cylinder g to its normal position. The co-operation of the studs with the rib g of course corresponds to that described. The bar S is thus rotated every time it is at the end of its receding course, by an angle corresponding to the distance be tween two neighboring studs f, whereas during its forward course i. e., at the time it is being drawn forward and acted upon by the rolls, it is not rotated. Provided the recess in the end of the spindle k, and the end of the bar S to be inserted thereinto, are made square, in like manner as the recess of spindle k and the other-end of the bar, the rotation of the bar will be transmitted to the spindle is, and if, moreover, the screw-threads 011 the spindle and in tube 2' be arranged with the proper direction of incline, the said rotation will have the effect of gradually screwing the spindle farther into the tube t, while the bar is being stretched. Under these conditions the spring Z has only to compensate any difference between-the stretching of the bar and the receding motion of the spindle in the tube.

The frame formed by the cross-heads c, c and rods 01 is moved backward when the gaps of the rolls are opposite to the bar S, by means of a bifurcated lever q, engaging by its slotted ends q, with pins 4 on the cross-head c, the said lever being keyed on an axle 0, carrying another lever-arm p, which is acted upon by a pin a on an arm a fixed to the roll-shaft E.

The mechanism for automatically adjusting the rolls closer together after every pass of the bar S, consists in four wedges G inserted between the bearings of the rolls and the frames A, B; two screw-spindles H, H journaled in the blocks 0, O and working with right and left-hand screw-threads in the opposite wedges G; ratchet-wheels keyed on the spindles H, H; pawls engaging with the said ratchet-wheels and pivoted to the levers I, I the latter being connected together by the rod K, and a tappet K fixed to the shaft E and operating on the lever I. It is, however, ordinarily sufficient to employ but two wedges G in combination with one of the spindles H or H and one ratchet mechanism.

The bar to be rolled or condensed on the machine is introduced through the bore of boss 6 and the cross-head c after the spindle is has been removed, the spindle being thereupon put into its place again, while the ends of the bar, suitably shaped beforehand, are inserted into the recesses of the two spindles 70, 7a. In the measure as the bar is stretched by the rolling process, the spindle is will be pushed outward against the force of the spring Z or screwed back in tube 2', or both, as described. The stretching consequently becomes apparent only at one end of the bar, while the other end is always returned, at the commencement of each pass, to the same position relatively, to the grooves of the rolls.'

The machine thus afiords the means for roll ing not only cylindrical and prismatic bars, but also such as are tapered or partly tapered and partly of uniform thickness and perfectly alike to each other in their sectional dimensions.

The modified pressing device shown in Figs. 10 and 11, consists in a cylinder 1; fixed to the sleeve 0 of the cross-head c, a piston o, fitting in said cylinder and integral with the tubet' into which the spindle is is screwed, and a pipe 12 attached to cylinder 1; and serving for the supply of steam, water or air under pressure, the said pipe having such flexibility as to allow of the cylinder moving to and fro with the cross-head c. The widened portion of sleeve 0 has at c an aperture for the escape of any operative liquid leaking past the piston 11, and through which air may enter.

I claim as the invention of BERNARD VITAL DAELIN 1. In a machine for rolling and condensing bars of metal, the combination of two rolls formed with operating portions and gaps on their peripheries, a reciprocating frame having appliances for carrying the bar to be rolled, means for automatically moving the frame backward at the time the gaps of the rolls come opposite to the bar, means for partially rotating the bar automatically on its backward course, and means for gradually and automatically adjusting the rolls closer together after each rotation, substantially as specified.

2. The combination of two rolls having operative portions and gaps; a movable frame comprising the cross-heads c, 0; guides for conducting the frame, spindle mounted in cross-head 0 so as to be susceptible of longitudinal motion therein and having a recess for receiving one end of the bar to be rolled; means in connection with the cross-head c for supporting the other end of said bar, and a pressing device acting lengthwise on the spindle 1c, substantially as described.

3. The combination of two rolls having operative portions and. gaps; a sliding frame comprising the cross-heads c, 0; guides for conducting the frame; the tube i mounted in cross-head 0 so as to be susceptible of moving lengthwise therein, and having inside screw threads; spindle having screwthreads working in the threads of tube 'i, the said spindle having a recess for receiving one end of the bar to be rolled; means in connection with cross-head c for supporting the other end of said bar, and a pressing-device, such as spring Z, acting endwise against the tube 6, substantially as described.

4. The combination of two rolls having operative portions and gaps; a sliding frame comprising the cross-heads c, 0, guides at, a and a a for conducting the frame; spindle 70 mounted in cross-head c; spindle is mounted rotatively in cross-head c and having at its end a square recess for the insertion of one end of the bar to be rolled; the boss 6 rotatively connected to the cross-head c and carrying on its peripherystudsf means for looking the spindle is to the boss e; the hollow cylinder g mounted rotatively at the end of the guides at, a and having a helical rib or ribs g,g co-operating with the studs f; and a stop and spring whereby the cylinder 9 is normally kept in a determinate position and its motion is controlled; substantially as specified.

5. The combination of two rolls having operative portions and gaps; a sliding frame provided with means for carrying the bar to be rolled; mechanism for moving the said frame backward; bearings for the said rolls; standards in which the bearings of one roll OCTAVIUS KNIGHT. Sub-administmt0r 0f the estate of Bernard Vital Daelen, deceased.

Witnesses:

H. S. KNIGHT, \VM. E. KNIGHT. 

